EP2106301B1 - Sichtereinrichtung für körniges gut und kreisaufmahlanlage mit einer solchen sichtereinrichtung - Google Patents

Sichtereinrichtung für körniges gut und kreisaufmahlanlage mit einer solchen sichtereinrichtung Download PDF

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Publication number
EP2106301B1
EP2106301B1 EP07801812.4A EP07801812A EP2106301B1 EP 2106301 B1 EP2106301 B1 EP 2106301B1 EP 07801812 A EP07801812 A EP 07801812A EP 2106301 B1 EP2106301 B1 EP 2106301B1
Authority
EP
European Patent Office
Prior art keywords
sifter
sifting
stock
mill
cone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07801812.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2106301A2 (de
Inventor
Siegfried Strasse
Albert Süsseger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag AG
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Filing date
Publication date
Application filed by KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP2106301A2 publication Critical patent/EP2106301A2/de
Application granted granted Critical
Publication of EP2106301B1 publication Critical patent/EP2106301B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents

Definitions

  • the invention relates to a sifter for sifting granular material, with a arranged within a classifier static cascade classifier as beware, the sichtluftströmungs rock another sifter is followed as Nachsichter, with inlets and outlets for conveyluft, reformgut, fines and coarse material.
  • a sifter in which within a classifier housing a static cascade classifier without moving components and a dynamic rod basket sifter with rotating rod basket are assembled into a compact unit.
  • the classifying device is switched on in a grinding circuit with a comminution roller mill or roller press.
  • the circulated material which contains Gutagglomerate as pressing slugs, is introduced at the top of the acting as a custodial cascade classifier.
  • the Gutagglomerate be resolved and the transversely to the falling Gutullschleier by the stair cascade flowing reform Kunststoff sifts the fine grain or medium grain fraction, while the coarse grain fraction is recirculated to the roller press, so that the Nachsichter downstream Stabkorbsichter with his rotating turbo elements is no longer burdened with coarse particles.
  • the fine grain fraction is using of the digestion leaving the classifying air stream discharged from the grinding circuit.
  • the invention has for its object to provide a compact built sifter of the type mentioned and a Kreislaufmahlstrom with such a sifting device, with respect to Throughput but also with regard to specific energy requirements can overcome previous limits.
  • a preferred classifying device is considered round in plan view, namely it consists of two packets spaced one above the other and concentrically arranged circular or polygonal conical rings, namely a radially outer stepping ring package and a radially inner preparefluten ring package , Between the radially outer and the radially inner ring packet the viewing zone is formed, which has the shape of a conical-cone stump in circular conical rings, in such a way that the large diameter of the viewing zone at the top and the small diameter of the viewing zone at the bottom of the ring pacts.
  • a post-siphon arranged the loaded with the fines view air.
  • the classifying air itself is introduced into the classifier housing via one or more circumferentially distributed supply ports, travels radially to tangentially from outside to inside the conical ring packets and the classifying zone, and is then withdrawn laden with the fines from the integrated downstream trimmers.
  • the incorporated indulgent can be a static air classifier.
  • the obdurator can also be a dynamic rod basket sifter with a rod axis rotatable about a vertical axis with distributed over the rotor circumference arranged turbo elements.
  • the coarse grain fraction discharge opening of the sifter is advantageously arranged above the crop feed of the mill.
  • the mill itself may be a high-pressure roller press for comminution grinding with mechanical promotion of the pressing slugs to the reformguteintragsö Maschinenen the static cascade classifier.
  • the mill may also be a roller mill or roller mill or another mill with promotion of the coarse grain fraction leaving the mill to the reformguteintragsö Samuelen the static cascade classifier.
  • the static cascade screen part first of all has the advantage that there are good agglomerates coming out of the mill, such as, for example.
  • B. pressing slugs can be disagglomerated using gravity virtually without power supply before the actual sighting begins.
  • the height of the conical ring packages of the static classifying element is at least 5 m.
  • Fig. 1 is in the lower part of a conical sortergepuruses 10 a static cascade classifier as a precautionary and arranged in the upper part of a static Beerstromsichter as a defaulter.
  • the static cascade classifier of two packages each spaced above and concentrically arranged conical frustum cone conical rings, namely from a radially outer staircase cone ring package 11 and a radially inner preparefluten Konusringvers 12.
  • a Visual zone 13 is also formed in the form of a conical-shaped stump whose large diameter D is at the top and whose small diameter d is at the bottom of the ring packages, where D is significantly greater than d.
  • the material to be sighted which may also contain Gutagglomerate as the pressing slugs a Gutbettzerklein mecanics roller press introduced.
  • this feed material 16 the fresh material and / or can be recirculated in a Kreislaufmahlstrom Good, by gravity from top to bottom on the steps of the radially outer conical ring packet 11 with Impact of the goods in particular on these outer conical rings and with Gutummélzung, the Gutagglomerate be deagglomerated, approximately in the cross flow through the inserted into the classifier housing 10 of the static cascade classifier air stream 17 vorgesichtet, and effectively dried when using hot gas instead of cold air.
  • the coarse grain fraction 18, which leaves the cascade peeler below through the discharge opening 15, is generally recirculated to the grinding mill mill with the separator inserted.
  • the Nachsichter with exit of the fine material laden with the visual air is arranged.
  • the classifying air / fine material flow 19 is supplied to a separator, not shown in the drawing, for the purpose of separating off the fine fine material, the exhaust air of which can again be recirculated into the static cascade classifier as part of the air stream 17.
  • Fig. 1 To Fig. 1 is the above installed inside the cascade classifier, a static Heilstromsichter without moving components.
  • Fig. 1 flows around the circumference distributed exhaust air 20a, 20b, etc. of the cascade classifier, which in this exhaust air to the prospect of coarse grain fraction a middle grain fraction and the fine grain fraction is suspended, from bottom to top in the annulus between the inner Gutroterichter 21 and the outer housing of the static Gutstromsichters a Due to the flow deflection, the suspension is separated into a medium-grain fraction 23, which is transported by gravity on the inside of the hopper 21 down to a central Gutaustragsö réelle 24 of the classifier, while the in the classifying air stream 19 remaining fine crown fraction is withdrawn via the central deflecting hood 25 from the classifier.
  • the center grain fraction 26 leaving the sifter means may be fed to a separate use. However, it is also possible to recirculate the coarse grain fraction 18 and the middle grain fraction 26 of the classifying device if necessary in a summarized manner for the purpose of feeding the mill of a grinding cycle.
  • Fig. 2 is not integrated in the interior of the radially inner Konusringwees 12 of the static cascade classifier indulgence as at Fig. 1 a static Lucasstromsichter without moving parts, but a dynamic Stabkorbsichter whose rotatably mounted, provided on the rotor circumference with turbo elements rod basket 27 with vertical axis of rotation 28 is disposed concentrically within the vane ring 22 at the top of the classifier. At the periphery of the rotating rod basket 27 is in the intermediate region to the vane ring 22 which also in Fig.
  • the separator device described above is switched into a grinding circuit with a roller mill 29, in such a way that the discharge openings 15 and 24 for discharging the coarse grain fraction 18 and the middle grain fraction 26 from the classifier are arranged above the crop feed of the roller mill.
  • This mill has a horizontal grinding table 30, which is set in rotation by a drive motor 31 via a gear.
  • the grinding stock to be placed on the circular grinding track of the grinding table 30 is used by several over the circumference distributed grinding rollers 32 rolled over and ground.
  • the roller mill 29 can work without air flow.
  • Theühlenaustragsgut 33 is via a conveyor 34 such. B. bucket elevator to the Guteintragsö réelleen 14 a, 14 b, etc. of the cascade viewer part of the classifier transported, in which also the fresh material 35 is introduced, for. As cement raw material, cement clinker or the like.
  • the fresh material 35 can in principle be introduced at any point in the grinding circuit. If the fresh material 35 moist, it is introduced with particular advantage to the Guteintragsö réelleen 14a, 14b, etc. of the cascade classifier together with the coming of the roller mill mill 32 regrind in the grinding circuit. In this way, the moist fresh material is dried in the cascade classifier, in particular with hot gas and pre-classified, so that in the roller mill 32 only dry ground material passes and the roller mill can work without air flow or gas flow.
  • Fig. 3 is different from Fig. 2 instead of using a roller mill, the separator device is combined with a comminution roller press or roller press 36, whose Austragsgut contains 37 so-called squeegees, which are particularly effectively disagglomerated and sighted after recirculation in Kaskadensicht part of the sifter.
  • the coarse grain fraction / middle grain fraction discharge 38 of the classifier is located immediately above the hopper shaft 39 of the roller press 36.
  • the sifter is after Fig. 3 combined with a single roller press 36. But it can also be combined with several such roller presses 36 because of their high throughput.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Grinding (AREA)
EP07801812.4A 2006-08-24 2007-08-22 Sichtereinrichtung für körniges gut und kreisaufmahlanlage mit einer solchen sichtereinrichtung Not-in-force EP2106301B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006039775A DE102006039775A1 (de) 2006-08-24 2006-08-24 Sichteinrichtung zum Sichten körnigen Gutes und Kreislaufmahlanlage mit Einschaltung einer solchen Sichteinrichtung
PCT/EP2007/007382 WO2008022778A2 (de) 2006-08-24 2007-08-22 Sichtereinrichtung zum sichten körnigen gutes und kreislaufmahlanlage mit einschaltung einer solchen sichtereinrichtung

Publications (2)

Publication Number Publication Date
EP2106301A2 EP2106301A2 (de) 2009-10-07
EP2106301B1 true EP2106301B1 (de) 2013-04-24

Family

ID=38962866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801812.4A Not-in-force EP2106301B1 (de) 2006-08-24 2007-08-22 Sichtereinrichtung für körniges gut und kreisaufmahlanlage mit einer solchen sichtereinrichtung

Country Status (9)

Country Link
EP (1) EP2106301B1 (ru)
CN (1) CN101528366A (ru)
CL (1) CL2007002482A1 (ru)
DE (1) DE102006039775A1 (ru)
DK (1) DK2106301T3 (ru)
EA (1) EA200900352A1 (ru)
PE (1) PE20080869A1 (ru)
TW (1) TW200831201A (ru)
WO (1) WO2008022778A2 (ru)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011055762B4 (de) 2011-11-28 2014-08-28 Maschinenfabrik Köppern GmbH & Co KG Vorrichtung zum Sichten von körnigem Gut und Mahlanlage
CN102744135B (zh) * 2012-07-20 2014-07-23 北京建筑大学 一种气流筛分粉碎机
DE102014001384B4 (de) 2014-02-01 2018-03-29 Khd Humboldt Wedag Gmbh Ringförmiger Kaskadensichter mit nachgeschaltetem Stabkorbsichter
CN103964513B (zh) * 2014-05-05 2015-07-08 南通宝聚颜料有限公司 一种连续式硫酸亚铁游离酸分离装置
DE102014015550A1 (de) * 2014-10-22 2016-04-28 Thyssenkrupp Ag Sichteinrichtung zum Sichten eines körnigen Materialstroms
CN108435293B (zh) * 2018-03-14 2019-03-26 北京中核大地矿业勘查开发有限公司 一种矿山生态恢复设备
CN108940442A (zh) * 2018-08-03 2018-12-07 南京环务资源再生科技有限公司 一种废旧电器的重力分选式粉碎机
CN109158316B (zh) * 2018-09-07 2024-04-23 天津水泥工业设计研究院有限公司 一种用于料床粉磨系统的紧凑型组合式选粉机
CN109046694A (zh) * 2018-09-17 2018-12-21 长沙开元仪器有限公司 一种研磨式粉碎机
BR112021024574A2 (pt) * 2019-06-04 2022-01-18 Smidth As F L Separador integrado
CN114345454A (zh) * 2021-12-01 2022-04-15 中材（天津）粉体技术装备有限公司 一种高效低阻型立式辊磨机
CN115625001B (zh) * 2022-12-20 2023-03-14 保定旗开得胜办公设备制造有限公司 一种打印机用均匀颗粒度碳粉研磨制备装置
CN116060185B (zh) * 2023-04-06 2023-06-20 山东埃尔派粉体科技有限公司 一种可实现惯性自分流的气流分级筛选机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE455864C (de) * 1924-01-12 1928-02-14 Christian Poehlmann Dr Ing Verfahren und Einrichtung zum Klassieren oder Sortieren von staubfoermigen Mineralien, insbesondere von Talkum, Graphit, Erden, Sanden und sonstigen Staubmassen, mit Hilfe von Luftstroemen
GB588347A (en) * 1945-02-13 1947-05-20 John Newton Collins Improvements in and apparatus for separating or sorting granular particles by pneumatic means
DE1607536C3 (de) * 1968-02-24 1974-01-17 Loesche Hartzerkleinerungs- Und Zementmaschinen Kg, 4000 Duesseldorf Luftstromsichter
DE4124416A1 (de) * 1991-07-23 1993-01-28 Krupp Polysius Ag Einrichtung und verfahren zur zerkleinerung von mahlgut unterschiedlicher koernung
DE4223762B4 (de) * 1992-07-18 2009-07-23 Khd Humboldt Wedag Gmbh Sichtereinrichtung zum Sichten von körnigem Gut und Umlaufmahlanlage mit Einschaltung einer solchen Sichtereinrichtung
DE4337215A1 (de) * 1993-10-30 1995-05-04 Kloeckner Humboldt Deutz Ag Umlaufmahlanlage
DE10329053A1 (de) * 2003-06-27 2005-01-13 Khd Humboldt Wedag Ag Kreislaufmahlanlage mit Mühle und Sichter
DE102005054209B4 (de) * 2005-11-14 2014-05-28 Loesche Gmbh Wälzmühle
DE102006004282A1 (de) * 2006-01-31 2007-08-02 Khd Humboldt Wedag Gmbh Rollenpresse insbesondere zur Gutbettzerkleinerung

Also Published As

Publication number Publication date
PE20080869A1 (es) 2008-07-02
DE102006039775A1 (de) 2008-02-28
CL2007002482A1 (es) 2008-01-04
DK2106301T3 (da) 2013-07-08
EA200900352A1 (ru) 2009-12-30
EP2106301A2 (de) 2009-10-07
WO2008022778A3 (de) 2008-04-17
CN101528366A (zh) 2009-09-09
TW200831201A (en) 2008-08-01
WO2008022778A2 (de) 2008-02-28

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